[dynamo] support random.Random

[williamwen42]

Stack from ghstack (oldest at bottom):

• -> [dynamo] support random.Random #133725

Fixes the observed graph breaks in #121349 and #121350.

But there are still graph breaks since a random output is being used as a seed, e.g.

import random
import torch

def fn(x):
    seed = random.randint(0, 100)
    rand = random.Random(seed)
    return x + rand.randrange(10)

opt_fn = torch.compile(fn, backend="eager", fullgraph=True)
opt_fn(torch.ones(1))

fails with

torch._dynamo.exc.InternalTorchDynamoError: UnspecializedPythonVariable() is not a constant

when tracing the line

rand = random.Random(seed)

cc @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @chenyang78 @kadeng @chauhang @amjames

[pytorch-bot]

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✅ You can merge normally! (2 Unrelated Failures)

As of commit fc25498 with merge base 5fab35d ():

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / linux-docs / build-docs-python-false (gh) (trunk failure)
• pull / linux-jammy-py3.8-gcc11 / test (docs_test, 1, 1, amz2023.linux.2xlarge) (gh) (trunk failure)

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[williamwen42]

@pytorchbot merge

[pytorchmergebot]

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[pytorchmergebot]

Merge failed

Reason: 1 mandatory check(s) failed. The first few are:

• .github/workflows/pull.yml / linux-jammy-py3.8-gcc11 / test (docs_test, 1, 1, amz2023.linux.2xlarge)

Dig deeper by viewing the failures on hud

Details for Dev Infra team

Raised by workflow job

Failing merge rule: Core Maintainers

[williamwen42]

@pytorchbot merge -i

[pytorchmergebot]

Merge started

Your change will be merged while ignoring the following 2 checks: pull / linux-jammy-py3.8-gcc11 / test (docs_test, 1, 1, amz2023.linux.2xlarge), pull / linux-docs / build-docs-python-false

Learn more about merging in the wiki.

Questions? Feedback? Please reach out to the PyTorch DevX Team

Advanced Debugging

Check the merge workflow status
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